Hey, these are neat! You've got your own artistic style going, which reminds me a bit of some of the other more cartoony takes we've seen here over the years.
Technical Difficulties made me laugh
![marathon [MLaugh]](./images/smilies/8.png)
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The composition of Security Officer 2 is excellent.
The Enforcer is interesting, because it changes how I think of Enforcers. I'd always seen them as 'merely' having many different-sized eyes. Your illustration highlights the difference between one main eye and other secondary eyes, making him more like a cyclops.
I don't like how the rocket launcher looks slightly dented where the two segments meet - I think the exaggerated curves are best left to the characters and other organic elements.